Jump to content

Search the Community

Showing results for tags 'Repeater'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


  • General Mobile Radio Service (GMRS)
    • Guest Forum
    • General Discussion
    • Technical Discussion
    • Equipment Reviews
    • FCC Rules Discussion
    • myGMRS.com
    • National and Regional GMRS Nets
  • Other Radio Services
    • Family Radio Service (FRS)
    • Multi-Use Radio Service (MURS)
    • Amateur Radio (Ham)
    • 900 MHz License-Free Radios (ISM)
  • Off-Topic
    • Miscellaneous Topics
  • WRBN985's Radio Etiuette

Find results in...

Find results that contain...

Date Created

  • Start


Last Updated

  • Start


Filter by number of...


  • Start



Website URL




Unit Number




GMRS Callsign

Ham Callsign

  1. Some have read the other post that I sort of hijacked with my crazy GMRS plans. Guessing some have questioned the validity, my ability, and said " cool story bro". Here is what we started with in the winter of 17. https://flic.kr/p/2hLHs8V To say it was a mess is an understatement. The previous owner had contracted crack heads to do the tear out. They took anything metal. They even took a door. Not to mention every bit of conduit. I had been in the site 6 months prior and everything that AT&T had there was still in the building. It took 3 very large roll off dumpsters to get it all out of there. So I went to work rewiring, reworking and rehabbing the building. At this point, we have a large AREDN (Amateur Radio Emergency Data Network) with access nodes on all four corners of the tower covering 900 2.4 and 5.8 There is a large ham packet switch network hub in place covering all bands including HF. And of course a GMRS repeater (soon to be more). Not to mention the ongoing projects. A Centracom Gold Elite console system. Several ham repeaters, DMR and analog. I semi serious HF station... More antenna's to be installed in the spring. Couple shots of the interior https://flic.kr/p/2khe2Ti https://flic.kr/p/2kjeWTE Now there was some discussion about my plans to put up 4 GMRS repeaters and how that was going to happen. Here is the 8 port combiner https://flic.kr/p/2kjeofT https://flic.kr/p/2kjaCPs Some of the repeaters https://flic.kr/p/2kjeWGT https://flic.kr/p/2kjeo64 The MTR on top is the current GMRS repeater we have on line. The XPR's in other photos are going to be used as well for this endeavor. Here is the Centracom CEB stack. This is a work in progress that will be interfacing to the control stations in the second photo and the repeaters as I get that fully programmed and running. https://flic.kr/p/2kjaCA1 https://flic.kr/p/2kjeo88 Up till now, it's all just in a block building. So here is the tower next to the block building https://flic.kr/p/2hLJtx7 And a couple photos of the firefighters training on the tower. We donate access for high angle and rope rescue to all fire departments in the area. https://flic.kr/p/2khdz69 https://www.flickr.com/gp/36646490@N05/hzD6f1 So that's what I am working with. It's been time consuming, but fun. And the best part is, since it's all private, I can do as much or as little as I feel like on any given day. Specifics on the tower. Height 239 feet to the lightning rod tip. 43 feet from leg to leg. Two decks on top, one is octagon. The lower is square. THe lower deck is 40 by 40 with 4 horns Upper deck we haven't measured, but it's smaller, has 2 horns. Since I always get ask about the horns. They are 12 foot wide and 15 feet tall at the apex of the top. Electrically they are a section of a 24 foot dish. Beam width is 1.5 degrees and the mathematical gain is just under 40 DB for 11 Ghz and 30 something for 6 Ghz. Feel free to ask questions.
  2. Good morning all, I just recently picked up a midland mxt275 and my license. I was hoping someone might be able to give me some instructions on how to setup my radio for repeater use. Thanks
  3. I have a few HT's and local repeaters that I have access to. I'm toying with the idea of setting up my own repeater at my house mainly because it would be "mine" and for the educational purpose. I'm wondering what's the cheapest way to get a repeater up and running at my home? My thought would be I could put an antenna (or 2) in my attic - I could put them outside on a lower roof but I don't think I can ground it adequately (hence the reason for just putting it in the attic), the actual repeater being two base units running a max of 50w. Is there any RF exposure issue to be concerned with at GMRS freq's at 50w? Now I live in an urban area where there are hills, not mountains and simplex to simplex with a KG-805 can get about a mile or two - two if I'm outside. I don't have the ability to erect a large antenna tower...and in reality even if I mounted an antenna outside on the highest point of the roof I couldn't get above the tree line - that's at least another 20-30 feet above the roof of my 2story house. Thoughts - is the cost to do this coupled with the expected performance going to outweigh the learning/fun aspect?
  4. I set up a repeater with my KG-1000's using an XLT-50 duplexer from BuyTwoWayRadios and the performance was not good. I used a Tram 1486 fed with 55ft of LMR400 with a height of about 50ft. The receive range was only a couple of miles. Thinking about two antennas and separating the two radios by extending the coupling cable that came with the radios. I would like to separate the radios by about 70ft or so. Each end of the house. Question, does anyone have any experience in such a situation, and if so, do you have any info on how far you can extend this connecting cable without affecting the performance of this repeater configuration? I'm thinking this would help greatly reduce the affects of desensing.
  5. I just put together a controller kit yesterday, the ID-O-Matic IV from Ham Gadgets: http://www.hamgadgets.com/id-o-matic-iv From the name it sounds like just an IDer, but it actually can control a repeater. It has a lot of features for the low price, and is in my opinion all I really need or can use for a GMRS repeater. Works pretty well as a ham repeater too, in fact. You can get this controller already assembled for about $60, but I elected to save $20 by assembling it myself. It's been awhile since I put together a kit anyway, and that's part of the radio hobby for me. It shipped quickly and wasn't missing any parts. It doesn't include a hard copy of the manual; you have to download a pdf from the website. I had already done so in preparation. It went together with no issues, and no magic smoke escaped when I powered it up to test. I haven't tested it with the radios yet. First I have to figure out the programming, which is done via usb with a terminal emulator program. I also have to interface to the radios, which shouldn't be too difficult.
  6. Has anyone used the GMRS V1 to setup as a repeater like what has been done with the Baofeng UV 5R? I am trying to setup a repeater station for ,y grandkids to be able to talk to each other and their parents while camping or why they are riding bicycles in their community. I have Baofeng UV 9R Plus radios. Tried to set these up. Everything works fine. but when I try and access with GMRS-V1, I cant change the Repeater channels to allow for the "-" duplex. When I do it will only receive. . Any help will be appreciated. Thanks Stump
  7. I have a Wouxun KG-UV8D+ and I'm using CHIRP or the Wouxun software to program it. I just can't seem to get it right. The repeater is 462.6000 - Out PL 110.9 - In DPL 712 What I need to know is what gets entered into each column in CHIRP. I don't understand the column abbreviations.
  8. FCC List of Equipment and Services That Pose National Security Threat Released On: Mar 12, 2021 http://www.fcc.gov/document/fcc-list-equipment-and-services-pose-national-security-threat "FCC's Public Safety and Homeland Security Bureau publishes a list of communications equipment and services that are deemed a threat to national security, consistent with requirements in the Secure and Trusted Communications Networks Act of 2019" A later link takes you to a document with more detail on Hytera's issues: "Covered Equipment or Services Video surveillance and telecommunications equipment produced or provided by Hytera Communications Corporation, to the extent it is used for the purpose of public safety, security of government facilities, physical security surveillance of critical infrastructure, and other national security purposes, including telecommunications or video surveillance services produced or provided by such entity or using such equipment." Commentary: It looks like Motorola is getting great value for their DC lobbying investments. Some GMRS licensees that use Hytera products (including me) will find it amusing that they have again gone to the courts to kill their most viable competitor. So, instead of providing products that meet their customer's needs, Motorola has found it more cost-effective to pursue the low road. They are getting really lazy - not the same company when it was under the Galvins. For those not having used Hytera's higher-end mobile, portable and repeater products (similar build quality to Motorola in their DMR lines, designed originally for the Chinese police forces, etc.), you will find them to be superior from a feature, capability and ETSI compliance standpoint. Not even close. While I support death to the CCP (our greatest enemy) and the concern over camera equipment, I will give credit to Hytera for their product design efforts, even though they likely lifted some marginally important IP from Motorola (another ongoing litigation issue). As the repeaters have Ethernet connectivity, I can see a concern there that might be mitigated through a simple "air gap". This policy will really kick Hytera's a** in the utility market and elsewhere. They do not manufacturer any P25 products. FCC List of Equipment and Services That Pose National Security Threat:
  9. I finally received my shiny new RT97 portable repeater yesterday. I chose to have them program it in the ham portion of the UHF band, since they don't charge extra for it, nor for tuning the duplexer. I do have the service equipment here in case I ever need to retune the duplexer. So far I'm very pleased with it's performance even though currently it's connected to a tri-band NMO mag mount antenna on a 14' diameter pie pan. I was able to hit the repeater full quieting about 3 miles from my 40 watt mobile. I've read elsewhere that many (including our very own Rich!) have had problems getting the programming software configured properly. After several attempts, I finally discovered that Retevis only allows COM1 through COM20 in their software. On my development computer all COM ports 1 through 22 (save one) are already in use, so the system assigned COM23 to the Prolific programming cable! I noted that COM2 was not already in use, so I had to use the Advance option to re-assign COM23 to COM2. Bingo! Now the darn thing will connect and will allow for read/write operations to take place. I note that the RT97 has 16 channels that may be programmed. Evidently the duplexer they are using will allow +/- 500kHz to pass through adequate signal, so they have pre-programmed the other 15 channels accordingly! This has proved to be a blessing since my primary channel (#1) is 442.975/447.975. The closest repeater on that pair is in Attica, Indiana, nearly 120 air miles from me so I thought that was clearly enough separation to cause no problems, especially since I chose to use 141.3 CTCSS for the input/output tone. Unfortunately, Attica is a DMR repeater and the analog 'machine gun sound' has been coming in loud and clear! So I've moved up 12.5kHz (channel #2) to eliminate the nasty sound... I am intending this portable repeater to be used primarily as part of our ARES group here in NW Indiana, and am anxious to get this outdoors for some range testing!
  10. Hi Folks, By way of introduction, my name is JT (WRKZ907) from Great Neck, Long Island, N.Y. I'm a newbie to this hobby and just recently purchased a Radioddity GM-30 GMRS Radio, while awaiting delivery of my Wouxun KG-905G's to arrive. I figured I'd get my feet wet learning how to use the GM-30, which seems to have a rich set of features, one in particular I would have liked to have seen on the KG-905G, which is the NOAA monitoring. Anyway - as I stated, I'm totally new to this, and I'm doing my best to ramp up to speed on my own, but I find interacting with others has always been a great way for me to learn things, and in particular - trying to understand how to program the tones for repeaters with the Radioddity GM-30, both manually and/or via the software for the device. Don't know if anyone out there in myGMRS last would be willing to help mentor this newbie & provide some assistance in helping me come up to speed and understand how this repeater stuff works, and would be willing to spend a little time with me, ideally someone in the Queens/Nassau area would be great, so we could possibly communicate together on air, but I'm happy to accept any assistance from you fine folks if your available & willing. Thanks in advance for any input or resources you folks can point me to or provide. I've already received some kind assistance from the friendly folks on the forums, & look forward to one day being able to return the courtesy to new members as well. Kindly, `JTL WRKZ907
  11. Hey. I was trying to save two repeaters in my radio the other day and it didn't work so well. I have all 8 repeater channels in memory with freuqncies and tones saved. When I tried to add a second repeater output which was already taken up by one of the other repeater channels, I tried to create a new frequency line using CHIRP, and it saved like all the other did, however, when I go to transmit, the radio doesn't work there. I just get a dead key. I assume because on a GMRS dedicated radio, we only get channels 15 to 22 to use. So what do you do if you need more channels? Do I end up having to delete one and enter the other just to use that one? Is there no way to save the same repeater multiple times when the channels are all used up? If that's the answer, that we can't, well OK. I am curious if anyone else has run into this and what you do?
  12. Hey Guys, I am part of a new group of guys that is forming in Oklahoma, the Oklahoma GMRS Club. you can find us here : http://okgmrs.club. We are looking into setting up a mesh of GMRS repeaters through out our state and linking into the MYGMRS Network. I was wondering What equipment y'all are using for your Repeaters, Antenna's, Coax, etc. And how you linked them up to the MYGMRS network, also interested in creating a HUB node for the GMRS network that all of our remote sites can connect to and effectively cover the entire area. Also any tips or tricks on Antenna Access would be highly advantageous, we don't have many mountains around us so it takes a few more repeaters to cover a decent base area.
  13. https://www.retevis.com/shop/Mobile-GMRS-repeater-RT97-Handheld-GMR-Radio-RT76/ Two handhelds and a repeater for $457. Be still my heart! I think I could use like four of these things, including one for the truck.
  14. Good afternoon/evening everyone. Hoping your Tuesday has gone well. This afternoon I experienced my first intentional jamming incident on the repeater. It started as a few key-ups, however when my father asked if I was calling, this unknown individual chose to hold down the transmit button without speaking. They did this for 30 seconds, than a minute, then 5 minutes, then for 20 (Im sure their transmitter is toast now.) At first I suspected that maybe something was wrong on the RX side of the repeater, so I tuned my portable to the repeaters input frequency, and sure enough there was a signal. So my first action was to jump into my SUV and try to track it. I could clearly receive the signal from inside of my house on a portable, so the transmitter couldn't be too far away. Using both the truck radio and the portable I tracked it to a house about 4 blocks away where a group of young adults were standing in the driveway laughing. I could see an antenna on the pick-up in the driveway and one of them was holding what looked to be a portable radio. At that location, my portable was receiving a clear signal without an antenna and while laying next to my leg. As I drove by, they saw my vehicle and me looking at them and they panicked. By the time I drove around the block, they had removed the antenna from the roof of the pick-up, and all had gone inside, looking out a window for me, and they stopped transmitting. Now, I would not recommend confronting anyone about radio jamming. There are too many crazy's in the world and really its not something to get shot over. I slowed in front of the house, and acted like I was taking down information, then drove away just to scare them a bit. Upon getting home, I removed the access codes from the MyGMRS listing. (Its odd they just tuned directly to the DPL I set for the repeater) and over the next day or two I will begin changing the access tones for the repeater. I may even use a split tone just to reduce the likelihood of this happening again. Then I got curious, I wondered what other repeater owners have done during a jamming situation to protect their equipment and stop the jammers from getting in. So to repeater owners out there, have you ever experienced jamming and how did you handle it?
  15. So I am thinking, that little Raspberry box might have more left in it that can be of use at a repeater site. External control of "other" devices. For starters cooling fans based on a temp sensor input. Loss of power resulting in transfer to backup. Backup battery state. Solar charging system state And more.... With the Pi GPIOs external in-outs the hardware is there. I do realize there are probably some repeater controllers running out there that already incorporate some of these functions, but mine do not. So the questions comes down to... Can PHP be loaded along with Asterisk? This would require opening Port 80 so a "Dashboard" of monitored points and access to functions could be accessed remotely. Is there enough horsepower and memory? I believe the Pi myGMRS is sending out is a 3 B+ 1.4 gig 64 bit quad core processor with a gig of memory. (not sure the Linux version running can utilize the 64 bit though). Over thinking it? Too much time on my hands? Just add another Raspberry to handle these operations? Never Satisfied (Rick H) WQHJ382 / W2rgh
  16. Just purchased two BTECH GMRS-V1s and I'm having a heck of a time trying to (1) read the directions and (2) figure out how to scan for CTSS tones. Is there anyone here that is a pro on these radios? Any help would be appreciated. Following the instructions is not working. Can't find anything specific to this device on youtube.
  17. I bought a repeater to use for GMRS. I want to program it with the right frequencies to match up to a "Midland 40 Watt GMRS MicroMobile Two-Way Radio" and other handheld radios. If I want to use GMRS channel 15 what frequencies would I use for Transmit and Receive on the repeater itself? Also what frequencies is the "Midland 40 watt GMRS Microbomile" using to transmit and receive for channel 15? They would be exact opposite right? Repeater = RX 462.5500 TX 467.5500 Midland 40 Watt MicroMobile or handheld radio = RX 467.5500 TX462.5500 Is this right or is it backwards?
  18. I have been around repeaters for most of my adult life but all I had to do was push the talk button on the mike and listen to the speaker in my Sheriff's vehicle. Things have changed. I have a Midland MXT275 and have turned on my Repeater Mode for channel 17 to reach a certain repeater's frequency. The Repeater has a listed output of 462.600mhz with 141.3HZ and a listed input of 467.600mhz with 141.3HZ. I put these CTS codes of 141.3 into my lower channel 17 (frequency 462.600) and my upper Repeater frequency channel 17 (467.600). My Midland Radio CTS number for 141.3HZ is 22: not a problem. My radio indicates all are input. But here is my rookie question so I don't make a mess out in the field. Do I transmit and receive on the same Repeater channel 17 or do I have to scan back and forth between the input and output channel 17 of the repeater. I even think maybe I have to utilize the Monitor mode of the radio to transmit and receive the repeater on the same channel. I just can't find reference in my instructions. Appreciate some guidance. Thanks Ole' Timers!
  19. I am new to the radio world. Just got GMRS license and two handheld GMRS-V1 radios. I got these for the zombie apocalypse (lol). I think I have these configured correctly and will be testing the range in the suburbs this week. But I am interested to know if / how the repeaters can help extend the distance. Is there a pdf or website someone could recommend? Thanks
  20. Hello all, Does anyone know if it is possible to lower the wattage output on a radius M1225? I read in repeater-builder that an m1225 was a good exciter for a (stand alone) msf-5000 pa . The Msf-5000 has an input of >5watts give or take.... I do have the rss (windows xp) for the Motorola m1225, I'm thinking, there might be a way, to adjust output wattage, in the service feature? Also I've read in forums (years ago) that people would adjust the m1225 potentiometer, when programming out of band, for ham use.... I'm putting together a repeater in the vhf business bands. I was also thinking an inline attenuator, but that kinda defeats the purpose of increasing the duty cycle, even on low,15 watts...just more heat generated that needs to be exhausted. Please and thank you for any help you can give me in this matter. d
  21. Hello all, I'm fairly new to the radio world even though you'd think my USMC Infantry background along with my current Firefighting gig would lead you to believe different. I should've paid closer attention obviously. I recently purchased a pair of Motorola MS350R GMRS/FRS radios. Wasn't even aware of the features or what the capabilities where until thumbing through the user manual. After some time on Google, I applied for and was granted a GMRS license from the FCC. I have spent the past couple of days trying to get these things to work on the repeater function with no luck. I'm a little ways from the nearest repeater but, I don't receive anything. Not even broken communication. I don't believe these things to be digital so I'm under the impression that I should still get garbage as a conformation. But to dive even deeper on the subject, I do not even know what I'm doing. I have no understanding of the freqs, or how to set the radio up in the first place. Everything I can find online is already a step above my understanding. Other than looking at what the channel freqs are and trying to match them (kinda), I have no idea of what's what. I DO know what channels are FRS, FRS/GMRS, and repeated GMRS. Also would like some clarity on the FRS/GMRS channels if you wouldn't mind. Any help will do. All I ask is that you assume I know nothing. Your wisecracks and jokes are encouraged as long as learning is achieved. Thanks in advance, K. Brown
  22. So a few weeks ago I took my repeater offline due to transmitter issues. I run a RKR1225 (rack mount version of the GR1225) and of course this repeater is known for its issues with burned out finals in the PA. At the time the unit was putting out .1W of its 25W of power. I didn't have time to pull the unit from the rack and disassemble the shelf so for a bit, out of wanting to protect components, I just shut the repeater off. Fearing a PA failure I was in no rush to dismantle anything until I knew I could get the parts or ship it out to a shop for repairs. When the time came earlier this week, I contacted a shop who said I needed to confirm the PA had not already been replaced as they couldn't repair an already repaired amp. So I pulled the shelf from the rack and began to dismantle it so I could remove the radio body, however when I removed the TX jumper from the radio, I found that the coax had failed, separating from the connector. From just looking at it you couldn't tell, but everything, the center pin and the shield, had come apart and simply slid out of the end of the connector and rest in my hand!! Concerned the PA may have been damaged because of this, I found a crap jumper I had set aside when I was given the double shielded jumper. I ran it through the meter and into a dummy load and behold, TX power returned to 25W! A little more testing, including the duplexer showed everything was working fine. I figured I would test the coax separately with a test meter for coax and sure enough it showed high resistance and feedback in the little 1' jumper. In the end I purchased 2 jumpers, a bit longer than the one I was replacing as I believe the older one could have been pulled on during install. I replaced both the RX and TX jumpers with LMR240 coax and the result is that not only did the TX power come back, but the range extended a little bit as well. This is just a reminder that even the simplest of things such as a jumper can mimic larger more costly problems. I believed it was going to be nearly $150 to repair the repeater and I even considered just replacing the unit with one that could run 50W on a 100% duty cycle. All I really needed was a $15 jumper to replace the one that failed. For those of us diagnosing issues for repairs we need to keep in mind that its not always the common problem causing the issue, and we need to make sure we always check the simple stuff we often overlook such as jumpers which are not a common failure point.
  23. Hello all. I live in the Ogden Utah area, and I have two GMRS repeaters (KENWOOD TRK-820) that are available for implementation. I am looking for someone that has site access. The optimal locations in this area would be Mt. Ogden and/or Antelope Island. If anyone is interested in taking advantage of my offer, please contact me at my personal email address; bmwfreq64@gmail.com, or you can text me (do not call) at (925) 200-1352. Hope to hear from someone soon! Regards, Jay J. Linton (WQXI237) bmwfreq64@gmail.com (925) 200-1352 Ogden, UT 84401 KENWOOD TKR-820 Image 110719.bmp
  24. Hi folks, I am a member of Howard County REACT, just outside of Baltimore. Our team has been trying to get a repeater on the air for a couple years now with no success. The issues isn't so much funds or equipment, but more so finding a site owner that is willing to donate or give a reduced rate for a site. Not to mention, just trying to make contact with other site owners. There are several repeaters widely spread around us, but they don't reach into the county very well, hence the need for one in our county. I have run into a lot of people that have said they would like to see a repeater put up in our area, but it just seems we can't make the right connections to make it work. We've even approached the county considering the nature of what our REACT does and they were not interested (I'm paraphrasing here, but they said "they already have a ARES/RACES team, we don't need anther radio group" despite my best attempt to explain that the nature of GMRS is entirely different). Is there any advice you guys could give or if you perhaps even know some site owners in the area, could you send them my way? And yes, our REACT team is a 501 c-3 charitable organization. This matters as it would allow for a tax write off.
  25. Hello, I am new in GMRS world. Yesterday I started looking for GMRS repeaters near me (Mount Prospect, IL) and unfortunately in myGMRS database I didn't find. I started searching on FRS and GMRS frequencies and every hour I can hear repeater signal on GMRS canal #21 (462.700, 467.700). The repeater transmits its name (something like DDSH... - I am not sure because of the quality of the voice is not the best) and current time. I didn't find any repeater in Illinois that has that name or operate on the frequency. Could you help me out what I can do to find more information of the repeater to be able to start using it? Thank you in advance for your help and time, Have a wonderful day, WRDF476
  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Guidelines.